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Finding the Fourth Proportional to 52,166.40, 71,988.96 and 28,292.40

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Solution

The fourth proportional to 52,166.40, 71,988.96 and 28,292.40 is: 39,043.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,166.40 : 71,988.96 = 28,292.40 : x
  2. Step 2: Convert to fraction form
    52,166.40/71,988.96 = 28,292.40/x
  3. Step 3: Cross multiply
    52,166.40x = 71,988.96 × 28,292.40
  4. Step 4: Simplify right side
    52,166.40x = 2,036,740,451.90
  5. Step 5: Solve for x
    x = 2,036,740,451.90/52,166.40
  6. Step 6: Final answer
    x = 39,043.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.